The Ilsco CSWS-3-38 SureCrimp Copper Compression Lug offers reliable and secure connections for your electrical applications. Designed for copper conductors, this lug features a standard barrel and a visual inspection window for easy verification of proper crimping. Its tin plating ensures excellent conductivity and corrosion resistance.This ILSCO CSWS-3-38 is a SureCrimp copper compression lug. It is designed for a conductor size of 3 AWG and features a 3/8 inch stud size with a standard barrel and a visual inspection window. The lug is tin plated and UL recognized.